2878780878683 has 2 divisors, whose sum is σ = 2878780878684. Its totient is φ = 2878780878682.

The previous prime is 2878780878643. The next prime is 2878780878731. The reversal of 2878780878683 is 3868780878782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2878780878683 - 2⁶ = 2878780878619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2878780878598 and 2878780878607.

It is not a weakly prime, because it can be changed into another prime (2878780878613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439390439341 + 1439390439342.

It is an arithmetic number, because the mean of its divisors is an integer number (1439390439342).

Almost surely, 2^{2878780878683} is an apocalyptic number.

2878780878683 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878780878683 is an equidigital number, since it uses as much as digits as its factorization.

2878780878683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3236954112, while the sum is 80.

Subtracting 2878780878683 from its reverse (3868780878782), we obtain a palindrome (990000000099).

The spelling of 2878780878683 in words is "two trillion, eight hundred seventy-eight billion, seven hundred eighty million, eight hundred seventy-eight thousand, six hundred eighty-three".